Camera.



A. M. HENRY.

CAMERA.

rrmoulou umn 3.13.17. moa 923,173, Patented June 1, 1909. 2 SHEETS-amm 1.

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\f\ T L2 o1 J A. M. HENRY.

CAMERA.

PPLmuloN rlLEn JAN. 17. won.

923,173. Patented June 1, 1909.

{sanne-SHEET nvulllo:

0 cameras ol the focusing type.

AUGUSTUS M. HENRY, 0F NEW YORK, N. Y.

CAMERA.

Specification of Letters Patent.

rammed .rune 1, i909.

Application filed January 17, 1908. Serial No. 411.223.

To all 'whom fit may eoncern:

Be it known that I, AUGUSTUS M. HENRY, a citizen of the United States, and resident of New York, in the county ol New York and State ol' New York, have invented certain new and useful Improvements in Cameras, of .which the following is a Specification.

This invention relates broadly to photographie apparatus, and more particularly to One of the objects thereof is to provide within cameras of this t ype an intermediate means whereby during the exposure' the o erator is enabled` to observe in the view-iin er a reproduction of the image thenY being received within the camera, and thereby learn whethersaid image is or is not in` focus.

Many other objects will be in part obvious and in partn pointed out hereinafter.

YIn the accompanying drawings, Figure 1 is a side elevation of a preferred ernl'nidiincnt ol the invention, showing the mechanism in a closed condition. Fig. 2 is front eleva.- tion of the same. Fig. 3 is ay side view of the triangular-prismatio sight-box or finder, partly in cross-section. Fig. t is an enlarged view Showing one method of nominating the plates which form the funnel ol' the said sight-box. Fig. 5 ,is a. side elevathin of another type oi' intermediate mechanism herein after mentioned.

Similar reference characters refer to sinnlnr parts throughout the several views ol the drawings.

This invention aims merely to provide intermediate means adapted to create a continuous focal accord, under a series o|` actuations, between the camera. proper and 1the view-finder or the like used in connection therewith. ln order, however, to seenre to the greatest extent the objects above set forth, it has been deemed desirable to ernbraee within the preferable embodiment of this invention, for the purposes of descrip-- tion, a. special sight-box or view-finder F hereinafter described.

Referring now to the intermediate meehanism shown in Figs. -1 and 2, which is a preferable embodiment, there is shown a pair ol' horizontal racks 13 arranged-longitudinally in parallel relation along the inner side walls of the camera easing A, their forward ends being iixedly attached as at 14 to the rigid shafts 15, which entend horizontally and at right angles therefrom. The opposite ends of said shafts 15 are xedly attached to the sides ol the lens-case as at 16. Engaging the teeth on the under side` of each of the said rarks1 3 will be observed a pair ol' cog-wheels 17, arranged uiulerneath the said ranks 13 and suitabll mounted as upon studs 1S within the respective side walls ol' the camera easing A. A second pair of oog-wheels 19 are suitally mounted as upon 'studs 20 and.are

adapted to engage cog-wheels 17 through the pinions 21. A pair ol' lower racks' 22 are each provided with a varied curve, so that when engaging the cog-wheels 19 their normal position will be as shown inA Figs. 1 and 2. Extending between the front ends of the racks 22 will be observed a connecting rod 23, each end' of which is iixedly fastened as at 24. intermediate the said rod 23 are two annular depressions 25 therein, the Spaee between said depressions being coincident with the greatest diameter of the lens-ease 26 thereabove. Fixedly attached to the lens-ease 26 at opposite sides thereof are the upper ends ol' two parallel downwardly-extending rods :37, slotted in their lower ends as shown in the drawings and adapted to have such slots fit into the two annular depressions 25. Exl tending upwardly from lens-case 26 will be observed a substantially V-shaped member 28, lixedly attached thereto as at 29. To the upper ends thereof are suitably attached two baekwa-rdly-extending horizontal bars 30, adapted to rest in the parallel runways 31, attached to the under portion of the upper wall ol the ramera-easing A. In order to Secure a continuous engagement between the lower racks 22 and the oog-wheels 19, there has been provided a air of flanges 32, one extending substantial y downward from each of the studs 30. To each of these flanges 32 is suitably attached a plate 33 having upturned ends 254 and 35, in the nature of parallel shelves. Arranged in these shelves is a rod 36, accommodating within a. fork 37 at its upper end a roller 38. Rollers 38 are normally pressed against the smooth edges of the curved racks 22 in firm though slightly yieldable relation by means of the compression springs 39, coiled about the rods 36 between the shelves 34 and 35. A special sightbox F above referred to is shown in connection with this ei'nbodiment in Figs.l 1 and 2, and also in Fig. `3 wherein the box-member 2 is seen in cross-section. It will be seen that the prime advantage thereof lies in its'` Vsubstantially triangular cross-section, as will be seen readily when the fact is noted that the downward slope formed by the utpper periphery of the distended bellows 3 o the camera roper is substantially parallel with the line of obliquity of the under lplane of the si ht- 5 box F.. In other words, al that ortiono an ordinary si ht-box which usual y exists be.

hind the inc ined mirror therein has been dispensed with in this embodiment of my invention as bein from the standpoint of compactness an utility, superfluous and ob'ectionable. In consequence thereof, it wil be seen that a sight-box of approximately double the reflective ca ecity of an ordinary sightbox, provided tlie former be of the special construction herein shown, may be accom modated within the identical space which formerl held the latter.

IWithm the oblique plane formin part of the triangular periphery of the bo y of the special si ht-boxis suitably fastened a mirror 4, wit in the' u per or horizontal plane thereof a ground-g ass 5, the same having superimposed thereover a magnifyin -glass 6, and within the front vertical lane t ereof a suitable aperture 7; all of w lich is wellknown in the art. Other and novel elements thereof, however, are a collapsible lighttight funnel 8 preferably composed of overlapping lates 9 suitably connected as in Fig. 4, and a ens of adjustable focus suitably fixed within a lens-case 10 attached to the outer end of the said funnel 8. The plate at the larger end thereof is suitably attached to the box-member 2 of the s ecial sight-box, as at 11, and so arranged t at it will take about the erture 7.

Alt ough the above is the preferred and is l believed to be the most successful embodiment of this invention, another means is shown in Fig. 6, which consists of the downwardly-extending parallel rods 39, (but one of said rods being seen in Fig. 6), suitably fastened to the lens-case 26 as at 40 and being connected at their lower ends b a rod 41. Mounted upon the pivot 42 will e observed a rock-lever 43, slotted at both its upper and lower ends to accommodate the pins 44 and 45 arranged respectively u on one of the rods 41 and u on the lower en of the rock-lever 46. Roch-lever 46 is pivotally mounted as at 47, having its upper end slotted to accommodate a pin 48, which is suitably fastened to the proiection 49 extending from the 1ens` case. 10 of the sight-box shown in said Fig. 6. A bellows 50 is here shown in place of the' collapsible funnel disclosed in Figs. 1 and 2. A sight-box of conventional form is here shown, but it is obvious that a special sight-box of the nature hereinbefore described could also be utilized. It is clear that this lever arrangement will accomplish the result desired, and that the lens-case 10 will move forward simultaneousl with the lens-casev 26, thus forming the ocal connection desired.

The operation of either of the embodiments of this invention herein described may now be understood. The camera having been opened and turned in the direction of the object to be photo raphed, the operator nmerely moves forward ens-case 26 until the image seen in the sight-box Fis in focus and thereu on instantaneously actuates the shutter an makes the exposure. It will be seen that when once placed in agreeing focal accord, this relation will be permanent through the connected parts as shown, and that when the sight-box 1s in focus the camera proper must also be in focus.

In view of the fact that many changes could be made in the above construction and many a parentlywidely different embodiments ol) this invention could be made without departing from the scope thereof, I intend that all matter contained in the above description or shown in the accompanying drawings shall be, interpreted as illustrative and not in a limiting sense.

l desire it also to be understood that the language used in the following claims is 1n- 90 tended to. cover all of the generic and specific features of the invention herein described and all statements of the scope of the invention which, as a matter of language, might be said to fall therebetween.

Having described my invention, what l claim as new, and desire to secure by Letters Patent, is:

1. In a camera or similar apparatus, in combination, a camera casing, a focusable photo raphic means therein, a focusable sightox or finder permanently attached to said camera casing, andjntermediate mechanism comprising a member rigdl attached to the lens-case of said photograp ic means, a rack attached thereto, a rack attached to the lens-case of said sight-box and intermediate gearing mechanism meshing 'with said racks and permanently attached to said' camera casing whereby u on the opening of the camera casing said liotographic means and said sight-box wi bc automatically maintained in operative connection for corresponding focusing according to the predetermined ocal length of the lens and the arrangement of the nechanism.

2. camera comprising a casing therefor,

a focusable phot raphic means therein provided with a beows and a lens-case containing a lens, a sight-box provided with a bellows and a lens-case containmg a lens, said sight-box being rigidly attached to said camera-casing, a rack attached to said lastmentioned lens-case, a slide for the rack, a pinion meshing with the rack and attached to saidcamera casing, a second pinion meshing with the first pinion and attached iixedly for rotation to a ear mounted in said camera-casing, a rac attached to said firstmentioned lens-case, said rack meshing with sind gnat', and means for maintaining;r sind gein and sind last-mentioned rftrk in yii-ldably Ineshingr relation, sind goin' und pinions being so disposod that when ono lons is in focus they othor is also in focus.

.'. ln rombiimtion, :i ranivra Casing. n

sight-box thm-(lin having;` it l'ot'nsing lons@ with in it lens-osso, n miniem propvr thm-oni;

having: n focusingr lons within it lonswziso, n` i rigid rink mountrd upon sind tirst-inontionod lons-raso, :L onrvvd rinli itttznhod ut ontl r-nd to sind svrond-nwntionvd huis-(wiso, und intermodizito gearing nivshingY with sind rm'ks adopted to maintain sind lindvr und .sind camera. in corrvsponding l'oriil rvlinions in van-yingv stages o1 locusA 4. In a ramon-n casing or similarapparatus. in combination with :i lornsnhlo photographic inwnis. :tn indirfttor)r vidi-d with it l'ornseiblv lons, sind ontmoeting nnnilwrs: ono vnd ot' said systtni being' positivrly ronnvctvd to said photo- ;ritplnr intzins and the othvl' tnd o1" :nid systvin boing positiwl)v ronnictvd to sind indiratory invmls; sind photographic nivsins,

i mw vnd ol' sind s vstoln boing' sind indiiatory moons :nid said s vstmn ol.`

connecting' nivinbms boing' adapted lo normally bv volli. istd wholly within sind rinnorzt Casingr :tnd to [be optrzitod :ts ont` nnit by thi' oxtvnsion liront sind raising" of tho photov graphic nivitns to vitry tlm znljnstnwnt of tht` two lfnsus in Connu-tion with thv niovvnlont. of thv lons-board. so :is tions ot' the latter u. uorrfct relation bouw-vn the position of thv objective'.

.3. In a. cznnorii raising or silnilznA apparait ns'v ('ombinzttion with it l'ocnsnblix pl|otographic means, :L sight-box or lindc'r provided with n. forusitblo lens. and ai systvin ot connectingl invinbui's; ono vnd of sind s vstmn being positivvly oonnocttd to sind photo to prvsrrvo itt :ill posilindor-lons :ind that ol tho grsiphir munis and thtA otliernd of sind systtni boing positively oonnorted to sind sight-box; sind photographic means, sind sight-box :md sind systonl ol vonnvt'ting invnilwrs bring :tditptrd to normally bc rollnpsid wholly within sind miniem, casing iind lo lm opvrnttd :is on@ unit by the extortsion t'roln sind f-nsing ol tho photographic nnatns to vitry thi` iuljnstlnvnt of thtl two linsvs in roini tion with tht` moven'nnt of tinlcns-bonird, so its to prfsorvo :it all positions ol' tho litttvr n ori-ort f'tflittion bvtwe'vn thtl position ot' thv lindtr-lvns and that of the objtrtiw.

ti. ln :t (':nmrii Pasing or similar apparatus, in t-oi'nbinznvion with :t focnsnblo photo- ;Irnphir moans. il, sight-box or tindrr providod )with n. lfocllsiiblo lons und havingr the lorni substantially ol :t hollow triangular prism, und n s vslvin ol" vonnvrtint;r lnonibors;

positivel)Y ronnvrte-d to sind photog'rzt )hit| moons and tho inning' positively ron nortl'd to sziid sight-box: sind photographic nn'inis, sind sight-box and sand system of 0onnvrtiny; inonibtrs boing riditptid to normally lw rollnpsid wholly within sind Cannero mtsing :ind to bv o|writt0d its ono nnit by the oxivnsion l'roin sind i-:tsing ol' thi` photogrnphit' nivinis to vitry thu adjustment oi the two lvnsos in ronnvtion with tho movement oll thv lons-hoard. so its to preserve at all positions of tho lottor a Correct rvlntion botwtvn tln` position ol thiJ IindPr-lcns :nid that ol th(` ohiirtivv, Sig'nvd at Now York :nid Stato ol Now York this 15 Jsnnmry A. l). 1905.

Al't'llS'Vl'S M. HENRY York in the county of Now' day of iinosstsz A. J. DonAN. J. li. Gnincmmx 

